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41 Cards in this Set
- Front
- Back
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What are the two main parts of the digestive system, where food is digested?
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1. Digestive tract- where food is prepared for digestion, gets digested, then absorbed
2. Digestive glands- which pour their secretions into the digestive tract to help in or contribute to the process of digestion |
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The digestive tract is made up of ?
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oral cavity
pharynx digestive tube begins with esophagus and ends with anus. |
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The oral cavity is made up of?
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lips cheeks
palate tongue gums teeth |
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Lip properties include
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skin surface
mucous membrane surface lip margin labial glands orbicularis oris muscle |
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Palate properties include
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nasopharangeal surface
oral surface palatine glands palatine muscles |
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Lip substance is made up of?
The underlying CT contains mucous glands called |
1.skeletal muscle fibers, mainly from obicularis oris muscle
2. labial glands, which lubricate the surface |
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Cheeks have same structure as lips, but the muscle forming the substance is called? What are the mucous glands called?
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1.Buccinator muscle.
2. buccal glands |
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Palate forms roof of oral cavity, Its greater anterior portion is called?
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Hard palate
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The smaller posterior portion is made up of muscles and ligaments and is called the?
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soft palate
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The oral mucous membrane is lined with ?
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stratified squamos epthelium non-keratinized
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The nasal mucous membrane is lined with?
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pseudostratified columnar cilitaed with some goblet cells.
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the underlying CT of both mucous membranes contain small mucous and serous glands which are the?
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Palatine glands, for lubrication
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Tongue
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muscular organ lying on the floor of mouth
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Tongue skeletal muscle fiber runs in various directions, the fibers that run from tip to base are called?
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Superior and inferior longitudinal groups
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The muscle group that run between superior and inferior surfaces are called?
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verticle group
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the muscle group that runs from side to side are called the
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transverse group
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Between muscle fibers occur mucous and serous glands called______(1) the mucous membrane covering the inferior surface is smooth and lined with______(2)?
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1.lingual glands
2. strat squamos non-kerat |
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the mucous membrane os superior surface is rough, divided into anterior 2/3 and posterior 1/3 by a V-shaped groove called?
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1. sulcus terminalis
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in the posterior 1/3, the CT is infiltrated by lymphatic tissue that constitutes the....
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lingual tonsil
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The anterior 2/3 mucous membrane presents elevations called__________(1). Name the 4 different types
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1.lingual papillae
2. Filiform Papillae fungiform papillae circumvallate papillae foliate papillae |
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Filiform papillae are _____(1) the papillae do not_________(2) and they function to_______(3)....
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1. most numerous papillae
2. carry taste buds 3. impart roughness to superior surface of the tongue |
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Fungiform papillae are located mainly_______(1). The papillae carry_______(2)
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1. tips and sides of the tongue
2. some taste buds |
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Circumvallate papillae are located_______(1) most of them sunken under the surface surrounded by a deep groove called the______(2)
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1. parallel and anterior to sulcus terminalis
2. trench |
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the_______ are serous glands in the CT deep to the papillae, and their ducts open at the bottome on the trench
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Von Ebners glands
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Foliate papillae appear as transverse folds on_______(1)
they appear_______(2) |
1.the sides of the tongue posteriorly
2. appear rectangular |
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Taste buds are found in mucous membrane of the tongue pharynx, palate and epiglottis. Name the three types of taste bud cells.
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1.Neuroepithelial (taste) cells
2. Supporting (sustentacular) cells 3. Basal Cells |
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Neuroepithelial cells are elongated rod shaped cells with long microvilli called ______(1) that arise from free pole and project slightly through________(2). They are sensitive to_________(3)
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1. hairlets
2. outer taste pore 3. taste stimuli |
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Supporting (sustentacular) cells. They ____ and ___ the more delicate taste cells.
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support and protect
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Basal Cells are small triangular cells at the basement membrane that are thought to be ____________
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stem cells for the other two types.
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Gums (or gingiva) is made up of _________?
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stratified squamos epithelium
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The teeth are made up of a _____(1) the exposed part, one or more_____(2) hidden in the alveolar sockets, and a ____ between crown and root.
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1. crown (the exposed part)
2.roots 3. neck |
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Each root of a tooth has an_____ _____. through which vessels and nerves pass. Roots are attached to the bony sockets via a fibrous membrane called the ______ ______.(2)
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1. apical foramen
2. periodontal membrane |
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the_____, forming the outer layer of the root, is closest to bone
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cementum
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the ____(1) forms most of root and part of crown, is harder and comtains about 72% ____ ____(2)
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1. dentin
2. mineral salts |
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the ____(1) which represents a very thick crust over the crown, hard material made up of 97% ____ _____(2)
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1. enamel
2. mineral salts |
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the ___ ____(1) and ___ ____(2) are filled with gelatinous material, the ____,(3) containing the blood vessels and nerves of the tooth
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1. root canal
2. pulp cavity 3. pulp |
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Pharynx is a...
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muscular tube that extends from mouth to esophagus.
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the surface epithelium is ____ ____ ____(1) , except in the nasopharynx, where it is _____ ___ ___.
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1. stratified squamos non-kera
2. pseudostrat columnar ciliated w/ some goblet cells |
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In the nasopharynx occurs infiltration of lymphoid tissue to constitute the ____ ____(1) or ______(2)
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1. pharyngeal tonsil
2. adenoids |
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what is the extent of the pharynx?
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base of skull to ivd C6-C7 (lower end of cricoid cartliage)
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Mucosa is the _____ layer
Musculosa is the ____ layer Adventitia is the ____ layer |
1. mucous
2. muscle 3. fibrous |
